Jump to content

CFD-DEM model: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
rewrite a little for grammar
format a couple of citations
Line 1: Line 1:
{{Orphan|date=February 2009}}
{{Orphan|date=February 2009}}
A '''CFD-DEM model''' is suitable for the modeling or [[simulation]] of fluid-solids or fluid-particles systems. In a typical CFD-DEM model, the phase motion of [[discrete]] solids or particles is obtained by the [[Discrete Element Method]] (DEM) which applies [[Newton's laws of motion]] to every particle<ref>Cundall P. A., Strack O. D. L., (1979). Discrete numerical-model for granular assemblies. Geotechnique, 29, 47-65</ref> and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by the traditional [[Computational Fluid Dynamics]] (CFD) [e.g., 2]. The model is first proposed by Tsuji et al. [3-4]. The interactions between the fluid phase and solids phase is better modeled according to [[Newton's third law]] [5].
A '''CFD-DEM model''' is suitable for the modeling or [[simulation]] of fluid-solids or fluid-particles systems. In a typical CFD-DEM model, the phase motion of [[discrete]] solids or particles is obtained by the [[Discrete Element Method]] (DEM) which applies [[Newton's laws of motion]] to every particle<ref>Cundall P. A., Strack O. D. L., (1979). Discrete numerical-model for granular assemblies. Geotechnique, 29, 47-65</ref> and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by the traditional [[Computational Fluid Dynamics]] (CFD).<ref>''e.g.'', see {{Cite journal|author=Chorin A. J.|year=1968|title=Numerical solution of the Navier-Stokes equations|journal=Mathematics of Computation|volume=22|pages=745&ndash;762}}</ref> The model is first proposed by Tsuji et al.<ref>Tsuji Y., Tanaka T., Ishida T., (1992). Lagrangian numerical-simulation of plug flow of cohesionless particles in a horizontal pipe. Powder Technology, 71, 239-250</ref><ref>Tsuji Y, Kawaguchi T, Tanaka T. Discrete Particle Simulation Of 2-Dimensional Fluidized-Bed. Powder Technology. 1993 Oct;77(1):79-87</ref> The interactions between the fluid phase and solids phase is better modeled according to [[Newton's third law]].<ref>{{Cite journal|author=Xu B. H. and Yu, A. B.|year=1997|title=Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics|journal=Chemical Engineering Science|volume=52|number=16|pages=2785&ndash;2809}}</ref>

==References==


[2]Chorin A. J., (1968). Numerical solution of the Navier-Stokes equations. Mathematics of Computation, 22, 745-762.

[3]Tsuji Y., Tanaka T., Ishida T., (1992). Lagrangian numerical-simulation of plug flow of cohesionless particles in a horizontal pipe. Powder Technology, 71, 239-250.

[4]Tsuji Y, Kawaguchi T, Tanaka T. Discrete Particle Simulation Of 2-Dimensional Fluidized-Bed. Powder Technology. 1993 Oct;77(1):79-87.

[5]Xu BH, Yu AB. Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics. Chemical Engineering Science. 1997 Aug;52(16):2785-809.


==Software==
==Software==
Line 17: Line 6:
Open source and non-commercial software:
Open source and non-commercial software:
* [http://www.cfdem.com/ CFDEMcoupling] is an open source toolbox for CFD-DEM coupling. [http://www.cfdem.com/ CFDEMcoupling Website]
* [http://www.cfdem.com/ CFDEMcoupling] is an open source toolbox for CFD-DEM coupling. [http://www.cfdem.com/ CFDEMcoupling Website]

==References==
{{Reflist}}
{{-}}


[[Category:Simulation software]]
[[Category:Simulation software]]

Revision as of 05:16, 23 September 2012

A CFD-DEM model is suitable for the modeling or simulation of fluid-solids or fluid-particles systems. In a typical CFD-DEM model, the phase motion of discrete solids or particles is obtained by the Discrete Element Method (DEM) which applies Newton's laws of motion to every particle[1] and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by the traditional Computational Fluid Dynamics (CFD).[2] The model is first proposed by Tsuji et al.[3][4] The interactions between the fluid phase and solids phase is better modeled according to Newton's third law.[5]

Software

Open source and non-commercial software:

References

  1. ^ Cundall P. A., Strack O. D. L., (1979). Discrete numerical-model for granular assemblies. Geotechnique, 29, 47-65
  2. ^ e.g., see Chorin A. J. (1968). "Numerical solution of the Navier-Stokes equations". Mathematics of Computation. 22: 745–762.
  3. ^ Tsuji Y., Tanaka T., Ishida T., (1992). Lagrangian numerical-simulation of plug flow of cohesionless particles in a horizontal pipe. Powder Technology, 71, 239-250
  4. ^ Tsuji Y, Kawaguchi T, Tanaka T. Discrete Particle Simulation Of 2-Dimensional Fluidized-Bed. Powder Technology. 1993 Oct;77(1):79-87
  5. ^ Xu B. H. and Yu, A. B. (1997). "Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics". Chemical Engineering Science. 52 (16): 2785–2809.